CN114964760A - Online checking device for safety valve of refrigeration system and using method - Google Patents
Online checking device for safety valve of refrigeration system and using method Download PDFInfo
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- CN114964760A CN114964760A CN202110212627.3A CN202110212627A CN114964760A CN 114964760 A CN114964760 A CN 114964760A CN 202110212627 A CN202110212627 A CN 202110212627A CN 114964760 A CN114964760 A CN 114964760A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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Abstract
The invention discloses an online checking device for a safety valve of a refrigerating system and a using method of the online checking device. The safety valve online checking device has the advantages of convenience in fixed installation of the safety valve, simple checking process, high checking efficiency and good protection performance, and solves the problems that the safety valve is inconvenient to be fixedly installed in the using process of the existing safety valve online checking device, the checking process is complicated, the checking efficiency of the safety valve is reduced, the checking device is mostly exposed outside, the damage to the checking device is easily caused after an external object is accidentally collided, and the protection performance of the checking device is reduced.
Description
Technical Field
The invention relates to the technical field of checking of safety valves of refrigeration systems, in particular to an online checking device for safety valves of refrigeration systems and a using method.
Background
The relief valve is the valve that prevents that medium pressure from surpassing regulation numerical value and playing the safety function, and the relief valve is in the pipeline, and when medium operating pressure surpassed regulation numerical value, the valve just opened automatically, discharges out unnecessary medium, and when operating pressure recovered the specified value, self-closing again, spring relief valve: the spring safety valve adjusts the pressure by adjusting the compression amount of the spring, and has the advantages of small volume, light weight, high sensitivity and no strict limitation on the installation position.
Spring relief valve need carry out the check-up in the course of working, and the online calibration equipment of current relief valve is not convenient for carry out fixed mounting to the relief valve at the in-process that uses, and the check-up process is loaded down with trivial details, has reduced the check-up efficiency of relief valve, and the calibration equipment exposes outside mostly, causes the damage of calibration equipment easily after the outside object is careless collided, has reduced its protectiveness.
Disclosure of Invention
The invention aims to provide an online checking device for a safety valve of a refrigerating system and a using method thereof, which have the advantages of convenience in fixed installation of the safety valve, simple checking process, high checking efficiency and good protectiveness, and solve the problems that the existing online checking device for the safety valve is inconvenient in fixed installation of the safety valve in the using process, the checking process is complicated, the checking efficiency of the safety valve is reduced, the checking device is mostly exposed outside, the damage to the checking device is easily caused after an external object is carelessly collided, and the protectiveness of the checking device is reduced.
In order to realize the purpose, the invention provides the following technical scheme: an online checking device for a safety valve of a refrigerating system comprises a workbench, wherein four corners of the bottom of the workbench are fixedly connected with supporting legs, the bottom of the workbench is fixedly connected with a box body, the top of the workbench is fixedly connected with a protection box, a vertical pipe penetrates through the top of the workbench and the inner cavity of the protection box, the bottom of the vertical pipe penetrates through the inner cavity of the box body, a circular plate is fixedly sleeved on the top of the vertical pipe, threaded rods are fixedly connected to two sides of the top of the circular plate, the top of each threaded rod is connected with a connecting piece through a positioning pin, the top of each connecting piece is in threaded connection with the safety valve, locking nuts are sleeved on the surface of each threaded rod, a supporting plate is sleeved on the surface of each threaded rod and positioned between two vertical locking nuts, an oil cylinder penetrates through the top of each supporting plate, and a T-shaped rod is movably connected to the inner cavity of each oil cylinder, the surface of the T-shaped rod is sleeved with a spring, the top of the T-shaped rod penetrates through the top of the oil cylinder, a pressure sensor is fixedly mounted at the top of the T-shaped rod, a quick connector is fixedly connected to the bottom of the oil cylinder, a long pipe is communicated with the bottom of the quick connector, one end of the long pipe, which is far away from the quick connector, penetrates through the vertical pipe and extends to an inner cavity of the box body and is communicated with a manual oil pump, the manual oil pump is communicated with an oil tank through a short pipe, the oil tank is positioned on the right side of the inner cavity of the box body, a pressure rod seat is fixedly connected to the top of the pressure sensor, a pressure rod is fixedly connected to the top of the pressure rod seat, the top of the pressure rod extends to an inner cavity of the safety valve, the front of the protective box is movably connected with a box door through a hinge, a controller is fixedly connected to the right side of the protective box, a display screen is embedded in the front of the controller, and an alarm is fixedly connected to the top of the controller, the output end of the pressure sensor is electrically connected with the controller, and the output end of the controller is respectively electrically connected with the display screen and the alarm.
Preferably, the right side of the top of the oil tank is communicated with an oil filling pipe, the top of the oil filling pipe penetrates through the top of the workbench, and a pipe cover is sleeved on the top of the oil filling pipe in a threaded manner.
Preferably, the left bottom fixedly connected with fixed plate of guard box inner chamber, the top of fixed plate is run through and is provided with the locking bolt, the bottom of locking bolt run through the fixed plate and with fixed plate threaded connection, the bottom and the plectane contact of locking bolt.
Preferably, a bearing is arranged between the vertical pipe and the workbench, an inner ring of the bearing is fixedly sleeved on the surface of the vertical pipe, an outer ring of the bearing is fixedly connected with the workbench, and a handle is fixedly connected to the right side of the front side of the box door.
Preferably, four corners of the bottom of the circular plate are movably connected with supporting wheels through supports, and the bottoms of the supporting wheels are in contact with the top of the workbench.
Preferably, a placing box is placed on the right side of the top of the workbench, a supporting plate is fixedly connected to the bottom of the supporting leg,
preferably, the front surface of the oil tank is embedded with an observation window, and the surface of the observation window is sprayed with scale marks.
The use method of the online checking device for the safety valve of the refrigeration system comprises the following steps:
a: opening a box door, connecting a safety valve to be detected with a connecting piece in a threaded manner, installing the safety valve at the top of the connecting piece, rotating a locking nut to be in threaded connection with a threaded rod, and adjusting the height of the locking nut, so that an oil cylinder, a pressure sensor, a pressure rod seat and a pressure rod are adjusted to be at a proper height, and the pressure rod extends into an inner cavity of the safety valve;
b: manually opening a manual oil pump, wherein hydraulic pressure in an inner cavity of an oil tank sequentially enters an inner cavity of an oil cylinder through the manual oil pump, a long pipe and a quick connector, hydraulic oil pushes a T-shaped rod to move upwards, the T-shaped rod pushes a pressure sensor to move upwards, the pressure sensor pushes a pressure rod seat and a pressure rod to move upwards, the pressure rod pushes a tension spring in an inner cavity of a safety valve, after the tension spring is compressed, the pressure sensor detects the received pressure and feeds information back to a controller, the controller controls a display screen to display a numerical value, when the detected pressure is smaller than a preset value, the controller controls an alarm to give an alarm, and the safety valve is unqualified;
c: when the calibration device is maintained and repaired, the locking bolt is rotated to be far away from the circular plate, and the circular plate is rotated to drive the threaded rod to rotate, so that the calibration device can be conveniently checked and repaired at different positions.
Compared with the prior art, the invention has the following beneficial effects:
1. the safety valve online checking device has the advantages of convenience in fixed installation of the safety valve, simple checking process, high checking efficiency and good protectiveness, and solves the problems that the existing safety valve online checking device is inconvenient in fixed installation of the safety valve in the using process, the checking process is complicated, the checking efficiency of the safety valve is reduced, the checking device is mostly exposed outside, the damage of the checking device is easily caused after external objects collide carelessly, and the protectiveness of the safety valve is reduced.
2. The invention can conveniently add hydraulic oil into the inner cavity of the oil tank by arranging the oil filling pipe, can seal the oil filling pipe by arranging the pipe cover, can enable the locking bolt to move downwards to be in close contact with the circular plate by arranging the fixing plate and the locking bolt in threaded connection, can fix and lock the circular plate, can support the vertical pipe by arranging the bearing, is convenient for the rotation of the vertical pipe, can stably support the circular plate by arranging the supporting wheel and is convenient for the rotation of the circular plate, can stably support the worktable by arranging the supporting legs and the supporting plate, is convenient for observing the height of the hydraulic oil level in the inner cavity of the oil tank by arranging the observation window and the scale mark, can protect the checking equipment by arranging the protective box, can tension the T-shaped rod by arranging the spring, is convenient for the return of the T-shaped rod, and can detect the received pressure by arranging the pressure sensor, through setting up manual oil pump, be convenient for manually to the hydro-cylinder inner chamber fuel feeding, through setting up lock nut, can lock fixedly to the backup pad to lock fixedly to the hydro-cylinder, be convenient for simultaneously adjust the height of hydro-cylinder, be convenient for better carry out the check-up to the relief valve.
Drawings
FIG. 1 is a schematic cross-sectional view of the inventive structure;
FIG. 2 is a schematic sectional view of a part of the structure of the invention;
FIG. 3 is an enlarged view of the structure A of FIG. 1;
fig. 4 is a schematic front view of the inventive structure.
In the figure: 1 workbench, 2 supporting legs, 3 box bodies, 4 protective boxes, 5 vertical pipes, 6 round plates, 7 threaded rods, 8 connecting pieces, 9 safety valves, 10 locking nuts, 11 supporting plates, 12 oil cylinders, 13T-shaped rods, 14 springs, 15 pressure sensors, 16 quick connectors, 17 long pipes, 18 manual oil pumps, 19 oil tanks, 20 pressure rod seats, 21 pressure rods, 22 box doors, 23 controllers, 24 display screens, 25 alarms, 26 oil filling pipes, 27 fixing plates, 28 locking bolts, 29 bearings and 30 supporting wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be configured in a specific orientation, and operate, and thus, cannot be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The components of the workbench 1, the supporting legs 2, the box body 3, the protective box 4, the vertical pipe 5, the circular plate 6, the threaded rod 7, the connecting piece 8, the safety valve 9, the locking nut 10, the supporting plate 11, the oil cylinder 12, the T-shaped rod 13, the spring 14, the pressure sensor 15, the quick connector 16, the long pipe 17, the manual oil pump 18, the oil tank 19, the pressure rod seat 20, the pressure rod 21, the box door 22, the controller 23, the display screen 24, the alarm 25, the oil filling pipe 26, the fixing plate 27, the locking bolt 28, the bearing 29 and the supporting wheel 30 are all universal standard components or components known by those skilled in the art, and the structure and the principle of the components can be known by technical manuals or conventional experimental methods.
Referring to fig. 1-4, an online checking device for a safety valve of a refrigeration system comprises a workbench 1, wherein four corners of the bottom of the workbench 1 are fixedly connected with supporting legs 2, the bottom of the workbench 1 is fixedly connected with a box body 3, the top of the workbench 1 is fixedly connected with a protection box 4, the top of the workbench 1 and an inner cavity of the protection box 4 are provided with a vertical pipe 5 in a penetrating manner, the bottom of the vertical pipe 5 penetrates through the inner cavity of the box body 3, the top of the vertical pipe 5 is fixedly sleeved with a circular plate 6, two sides of the top of the circular plate 6 are fixedly connected with threaded rods 7, the top of the threaded rod 7 is connected with a connecting piece 8 through a positioning pin, the top of the connecting piece 8 is in threaded connection with a safety valve 9, the surface of the threaded rod 7 is sleeved with locking nuts 10, the surface of the threaded rod 7 is sleeved with a supporting plate 11, the supporting plate 11 is positioned between two vertical locking nuts 10, and the top of the supporting plate 11 is provided with an oil cylinder 12 in a penetrating manner, the inner cavity of the oil cylinder 12 is movably connected with a T-shaped rod 13, a spring 14 is sleeved on the surface of the T-shaped rod 13, the top of the T-shaped rod 13 penetrates through the top of the oil cylinder 12, a pressure sensor 15 is fixedly installed at the top of the T-shaped rod 13, a quick joint 16 is fixedly connected with the bottom of the oil cylinder 12, a long pipe 17 is communicated with the bottom of the quick joint 16, one end, away from the quick joint 16, of the long pipe 17 penetrates through the vertical pipe 5 and extends to the inner cavity of the box body 3 and is communicated with a manual oil pump 18, the manual oil pump 18 is communicated with an oil tank 19 through a short pipe, the oil tank 19 is positioned on the right side of the inner cavity of the box body 3, a pressure rod seat 20 is fixedly connected with the top of the pressure sensor 15, a pressure rod 21 is fixedly connected with the top of the pressure rod seat 20, the top of the pressure rod 21 extends to the inner cavity of the safety valve 9, the front of the protection box 4 is movably connected with a box door 22 through a hinge, a controller 23 is fixedly connected with the right side of the protection box 4, a display screen 24 is embedded in the controller 23, top fixedly connected with alarm 25 of controller 23, pressure sensor 15's output and controller 23 electric connection, controller 23's output respectively with display screen 24 and alarm 25 electric connection, through setting up protective housing 4, can protect calibration equipment, through setting up spring 14, can carry out the tensioning to T type pole 13, the return of T type pole 13 of being convenient for, through setting up pressure sensor 15, can detect the pressure that receives, through setting up manual oil pump 18, be convenient for manually to hydro-cylinder 12 inner chamber fuel feeding, through setting up lock nut 10, can lock fixedly to backup pad 11, thereby it is fixed to lock hydro-cylinder 12, the height of the 12 of simultaneously being convenient for adjust hydro-cylinder, be convenient for better carry out the calibration to relief valve 9.
The right side intercommunication at oil tank 19 top has adds oil pipe 26, and the top that adds oil pipe 26 runs through to workstation 1's top, and the top thread cover that adds oil pipe 26 is equipped with the tube cap, through setting up oil pipe 26, is convenient for add hydraulic oil to oil tank 19 inner chamber, through setting up the tube cap, can seal up adding oil pipe 26.
The fixed plate 27 is fixedly connected to the bottom of the left side of the inner cavity of the protective box 4, the locking bolt 28 penetrates through the top of the fixed plate 27, the bottom of the locking bolt 28 penetrates through the fixed plate 27 and is in threaded connection with the fixed plate 27, the bottom of the locking bolt 28 is in contact with the circular plate 6, the fixed plate 27 is in threaded connection with the locking bolt 28, the locking bolt 28 can move downwards to be in close contact with the circular plate 6, and the circular plate 6 can be fixed and locked.
Be provided with bearing 29 between standpipe 5 and the workstation 1, the fixed cover of inner ring of bearing 29 is established on the surface of standpipe 5, bearing 29's outer loop and workstation 1 fixed connection, and the positive right side fixedly connected with handle of chamber door 22 can support standpipe 5 through setting up the bearing, is convenient for standpipe 5's rotation.
All there is supporting wheel 30 in the four corners of plectane 6 bottom through support swing joint, and the bottom of supporting wheel 30 contacts with the top of workstation 1, through setting up supporting wheel 30, can carry out the steady support to plectane 6, the rotation of the plectane 6 of being convenient for.
Placing the case has been placed on the right side at 1 top of workstation, and the bottom fixedly connected with backup pad of landing leg 2 through setting up landing leg 2 and backup pad, can carry out the outrigger to workstation 1, places the case through the setting, is convenient for place and waits to detect the part.
The observation window is installed in the front of oil tank 19 inlaying, and the surface spraying of observation window has the scale mark, through setting up observation window and scale mark, is convenient for observe the height of 19 inner chamber hydraulic oil liquid levels of oil tank.
Through the cooperation of a workbench 1, supporting legs 2, a box body 3, a protective box 4, a vertical pipe 5, a circular plate 6, a threaded rod 7, a connecting piece 8, a safety valve 9, a locking nut 10, a supporting plate 11, an oil cylinder 12, a T-shaped rod 13, a spring 14, a pressure sensor 15, a quick coupling 16, a long pipe 17, a manual oil pump 18, an oil tank 19, a pressure rod seat 20, a pressure rod 21, a box door 22, a controller 23, a display screen 24 and an alarm 25, possess and be convenient for carry out fixed mounting to the relief valve, the check-up process is simple, and the check-up is efficient, advantage that protectiveness is good, solved current online check-up device of relief valve and be not convenient for carry out fixed mounting to the relief valve at the in-process that uses, the check-up process is loaded down with trivial details, has reduced the check-up efficiency of relief valve, and the check-up device exposes outside mostly, causes the damage of check-up device after the outside object is careless collided easily, has reduced the problem of its protectiveness.
The use method of the online checking device for the safety valve of the refrigeration system comprises the following steps:
a: opening a box door 22, connecting a safety valve 9 to be detected with a connecting piece 8 in a threaded manner, installing the safety valve 9 at the top of the connecting piece 8, rotating a locking nut 10 to be connected with a threaded rod 7 in a threaded manner, and adjusting the height of the locking nut 10, so that an oil cylinder 12, a pressure sensor 15, a pressure rod seat 20 and a pressure rod 21 are adjusted to be at a proper height, and the pressure rod 21 extends into an inner cavity of the safety valve 9;
b: manually opening a manual oil pump 18, enabling hydraulic pressure in an inner cavity of an oil tank 19 to enter an inner cavity of an oil cylinder 12 through the manual oil pump 18, a long pipe 17 and a quick connector 16 in sequence, enabling hydraulic oil to push a T-shaped rod 13 to move upwards, enabling the T-shaped rod 13 to push a pressure sensor 15 to move upwards, enabling the pressure sensor 15 to push a pressure rod seat 20 and a pressure rod 21 to move upwards, enabling the pressure rod 21 to push a tension spring in the inner cavity of a safety valve 9, enabling the pressure sensor 15 to detect the pressure received after the tension spring is compressed, feeding information back to a controller 23, enabling the controller 23 to control a display screen 24 to display numerical values, enabling the controller 23 to control an alarm 25 to give an alarm when the detected pressure is smaller than a preset value, and enabling the safety valve 9 to be unqualified at the moment;
c: when the calibration device is maintained and repaired, the locking bolt 28 is rotated to be far away from the circular plate 6, the circular plate 6 is rotated to drive the threaded rod 7 to rotate, and the calibration device can be conveniently checked and repaired at different positions.
In summary, the following steps: the online checking device for the safety valve of the refrigeration system and the using method thereof are characterized in that the online checking device for the safety valve of the refrigeration system comprises a workbench 1, supporting legs 2, a box body 3, a protective box 4, a vertical pipe 5, a circular plate 6, a threaded rod 7, a connecting piece 8, a safety valve 9, a locking nut 10, a supporting plate 11, an oil cylinder 12, a T-shaped rod 13, a spring 14, a pressure sensor 15, a quick connector 16, a long pipe 17, a manual oil pump 18, an oil tank 19, a pressure rod seat 20, a pressure rod 21, a box door 22, a controller 23, a display screen 24 and an alarm 25, and are matched.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a refrigerating system relief valve online calibration equipment, includes workstation (1), its characterized in that: the four corners of the bottom of the workbench (1) are fixedly connected with supporting legs (2), the bottom of the workbench (1) is fixedly connected with a box body (3), the top of the workbench (1) is fixedly connected with a protection box (4), the top of the workbench (1) and an inner cavity positioned in the protection box (4) are provided with a vertical pipe (5) in a penetrating manner, the bottom of the vertical pipe (5) is penetrated to the inner cavity of the box body (3), the top of the vertical pipe (5) is fixedly sleeved with a circular plate (6), two sides of the top of the circular plate (6) are fixedly connected with threaded rods (7), the top of the threaded rod (7) is connected with a connecting piece (8) through a positioning pin, the top of the connecting piece (8) is in threaded connection with a safety valve (9), the surface of the threaded rod (7) is sleeved with a locking nut (10), and the surface of the threaded rod (7) is sleeved with a supporting plate (11), the utility model discloses a hydraulic oil tank, including backup pad (11), support pad (11), the top of backup pad (11) is run through and is installed hydro-cylinder (12), the inner chamber swing joint of hydro-cylinder (12) has T type pole (13), the surface cover of T type pole (13) is equipped with spring (14), the top of T type pole (13) is run through to the top of hydro-cylinder (12), the top fixed mounting of T type pole (13) has pressure sensor (15), the bottom fixedly connected with quick-operation joint (16) of hydro-cylinder (12), the bottom intercommunication of quick-operation joint (16) has long tube (17), the one end that quick-operation joint (16) was kept away from in long tube (17) runs through standpipe (5) and extends to the inner chamber and communicates and has manual oil pump (18) to box (3), manual oil pump (18) have oil tank (19) through the nozzle intercommunication, oil tank (19) are located the right side of box (3) inner chamber, the utility model discloses a safety valve, including pressure sensor (15), top fixedly connected with depression bar seat (20) of pressure sensor (15), top fixedly connected with depression bar (21) of depression bar seat (20), the top of depression bar (21) extends to the inner chamber of relief valve (9), there is chamber door (22) in the front of protective housing (4) through hinge swing joint, the right side fixedly connected with controller (23) of protective housing (4), the front of controller (23) is inlayed and is installed display screen (24), the top fixedly connected with alarm (25) of controller (23), the output and the controller (23) electric connection of pressure sensor (15), the output of controller (23) respectively with display screen (24) and alarm (25) electric connection.
2. The refrigeration system safety valve online verification device of claim 1, wherein: the right side of the top of the oil tank (19) is communicated with an oil filling pipe (26), the top of the oil filling pipe (26) penetrates through the top of the workbench (1), and a pipe cover is sleeved on the top of the oil filling pipe (26) in a threaded mode.
3. The refrigeration system safety valve online verification device of claim 1, wherein: the left bottom fixedly connected with fixed plate (27) of guard box (4) inner chamber, the top of fixed plate (27) is run through and is provided with locking bolt (28), the bottom of locking bolt (28) run through fixed plate (27) and with fixed plate (27) threaded connection, the bottom and the plectane (6) contact of locking bolt (28).
4. The refrigeration system safety valve online verification device of claim 1, wherein: be provided with bearing (29) between standpipe (5) and workstation (1), the fixed cover of inner ring of bearing (29) is established on the surface of standpipe (5), the outer loop and workstation (1) fixed connection of bearing (29), the positive right side fixedly connected with handle of chamber door (22).
5. The refrigeration system safety valve online verification device of claim 1, wherein: four corners of the bottom of the circular plate (6) are respectively movably connected with supporting wheels (30) through a support, and the bottoms of the supporting wheels (30) are in contact with the top of the workbench (1).
6. The refrigeration system safety valve online verification device of claim 1, wherein: the right side at the top of the workbench (1) is provided with a placing box, and the bottom of the supporting leg (2) is fixedly connected with a supporting plate.
7. The refrigeration system safety valve online verification device of claim 1, wherein: the front of oil tank (19) is inlayed and is installed the observation window, and the surface spraying of observation window has the scale mark.
8. The use method of the on-line verification device for the safety valve of the refrigeration system as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
a: the box door (22) is opened, the safety valve (9) to be detected is in threaded connection with the connecting piece (8), the safety valve (9) is installed at the top of the connecting piece (8), the locking nut (10) is rotated to be in threaded connection with the threaded rod (7), and the height of the locking nut (10) is adjusted, so that the oil cylinder (12), the pressure sensor (15), the pressure lever seat (20) and the pressure lever (21) are adjusted to be at proper heights, and the pressure lever (21) extends into an inner cavity of the safety valve (9);
b: manually opening a manual oil pump (18), enabling hydraulic pressure in an inner cavity of an oil tank (19) to sequentially pass through the manual oil pump (18), a long pipe (17) and a quick connector (16) and enter an inner cavity of an oil cylinder (12), enabling hydraulic oil to push a T-shaped rod (13) to move upwards, enabling the T-shaped rod (13) to push a pressure sensor (15) to move upwards, enabling the pressure sensor (15) to push a pressure rod seat (20) and a pressure rod (21) to move upwards, enabling the pressure rod (21) to push a tension spring in an inner cavity of a safety valve (9), enabling the pressure sensor (15) to detect the pressure after the tension spring is compressed, feeding information back to a controller (23), enabling the controller (23) to control a display screen (24) to display numerical values, enabling the controller (23) to control an alarm (25) to give an alarm when the detected pressure is smaller than a preset value, and enabling the safety valve (9) to be unqualified at the moment;
c: when the calibration device is maintained and repaired, the circular plate (6) is far away from the rotary locking bolt (28), the rotary circular plate (6) drives the threaded rod (7) to rotate, and the calibration device can be conveniently checked and repaired at different positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212627.3A CN114964760A (en) | 2021-02-25 | 2021-02-25 | Online checking device for safety valve of refrigeration system and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212627.3A CN114964760A (en) | 2021-02-25 | 2021-02-25 | Online checking device for safety valve of refrigeration system and using method |
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| Publication Number | Publication Date |
|---|---|
| CN114964760A true CN114964760A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110212627.3A Pending CN114964760A (en) | 2021-02-25 | 2021-02-25 | Online checking device for safety valve of refrigeration system and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116499734A (en) * | 2023-06-25 | 2023-07-28 | 安泰源特种设备检测集团有限公司 | Elevator safety valve verification platform and verification method thereof |
-
2021
- 2021-02-25 CN CN202110212627.3A patent/CN114964760A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116499734A (en) * | 2023-06-25 | 2023-07-28 | 安泰源特种设备检测集团有限公司 | Elevator safety valve verification platform and verification method thereof |
| CN116499734B (en) * | 2023-06-25 | 2023-09-26 | 安泰源特种设备检测集团有限公司 | Elevator safety valve verification platform and verification method thereof |
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